Machine for stamping leather or other articles



June 3 1924.. 1,496,586 T. MARSTON ET AL MACHINE FOR STAMPENG LEATHER OROTHER ARTICLES Filed NOV. 1, 1921 2 Sheets-Sheet I m m m T. MARSTON ETAL MACHINE FOR STAMPING LEATHER OR OTHER ARTICLES June 3 1924.

1921 2 Sheets-Sheet 2 Filed Nov. 1,

.mi n.

IIIIIII HHHI Patented June 3, 192%. i I TES ATENT OFFICE.

TROWBRIDGE MABSTON, OF MOBRXSTOWN, NEW JEESEY HERBERT E. SEBNER, OF NEWYORK, N. Y., ASSIGNORS; TO KA'UMAGrB-APH. COMPANY, OF NEW YORK, N. Y., ACORPORATION 03? NEW YORK. I

MACHINE FOB- STAMPING LEATHER. OR OTHER ARTICLES.

Application filed November 1, 1921. Serial No. 512,128.

To all whom it 'Mflj/ concern: supporting bed or plate 2 on which thearti- 55 tie it known that we,-Tnownmnm Mess cle to be stamped isplaced, and has also a iron and HERBERT E. Snnnnn, citizens of thesuitable upwardly projecting bracket 3 pro- United States and residents,respectively, of vided with bearings for supporting the 5 Morristown, inMorris County, State of New parallel link arms 5 and 6 whose free endsJersey, and New York city in the county are pivotally connected to thestamping head 60 and State of New York, have invented cer- 7 by means ofthe transverse shafts 5 and 6". tain new and useful Improvements in Ma-The head 7 comprises the side members wit chines for Stamping Leather orOther Artitransverse crossbar 7" provided with a han- 10 cles, of whichthe following is a specificadle 7 and carries at its bottom 'a pressertion. plate 7 which may be heated in any suit- 65 his invention relatesto the application able or well-known manner by steam, elecof transferor decalcomania stamps to artitricity or otherwise. cles of variouskinds such as calf'skins and Extending transverselythrough the Sides isintended to provide a reliable and efliof the head 7 and supported insuitable bearcient mechanism for quickly andreadily ings is a rotatableshaft 9 carrying heads 21 70 impressing the successivestamps formed onforming the end supports of a drum or feed a carrier strip of tissuepaper or other maroller 20. As best shown in Figure 5, one terial tosuccessive pieces of fabric or to 'end ofthe head is provided with alarge 2 different portions of the same fabric. flanged opening to whichis secured asup- In its general-features it comprises a reporting diskor plate 7 which carries the 7 ciprocatory or oscillatory head carryingmechanism for actuating the feed roller and strip-holding and feeding,devices for interalso the brake mechanism to be hereinafter mittentlyfeeding the stamp-carrying strip described.

25 a predetermined distance at each cycle of An upper or idler feedroller mounted operations and hot pressing the same against on swingingarms 31 pivoted to transverse the fabric carried by a work-supportingbed. shaft 32 cooperates with the feed roller 20 As the to and fromovements of the head in feeding the tissue paper or other stripcontrols the necessary movements of the which carries the material.forming the 30 mechanism the machine can be operated by stamps at shortintervals throughout its a foot pedal, or by power, leaving the handslength. free to manipulate the pieces of work to be According to theparticular form of the stamped. device shown and described herein it isthe This andother characteristic features of intention that the stampstrip should be at 35 the invention will be particularly explained reston the downward movement of the in this specification and willbe definedin presser or head and then be fed forward an the claims hereto annexed.appropriate distance to bring the next stamp In the accompanyingdrawings is illus into stamping position on the upward movetrated asimple and efficient formembodying ment of the head. It is alsopreferred that the principles of this invention in which: the movementof the head itself shall cause Figure 1 is a side elevation of thecomthe actuation of the feeding mechanism so plete assembled machine innormal position. as to secure perfect correspondence between T Figure 2is a front elevation at right their respective movements.

angles to the plane of Figure 1; The long stamp strip is wound on a sup-45 Figure 3 i's'an enlarged detail end elevaporting reel 4 from which itis unwoun "tion of that side of the head carrying workand carried partlyaround transverse guide inn: parts. bars 35, 36, then along underneaththe yield- Figure 4 is an enlarged central cross secing holder orpresser foot 37 whose middle tion through the head. portion is cut awayas shown in Figure 4 to -50 Figure 5 is a front elevation partly inallow the hot presser plate 7 to pass through section showing the head;and 1 7 directly into contact with the stamp-carry- Figure 6' is adetail face view of'the ing portion of the strip. The presser footclutch. 37 is provided with an upwardly turned por- .Awork tableliisprovided with a work tion, 38 to properly guidethe strip and -m'entof the presser foot.

pin 11 which normally pinion 8.

present it t'o'gthe feed rolleri20 aroundxwhich it is passed abouthalfway and then reversely turned to pass back over the transverse bar withits free m, dropped over the tissue the strip into any conwastereceptacle. e presser foot or tape-holding member 37 is carried by shortplungers 39 which ex tend upward through openings in the bottom piece ofthe head 7 to permit vertical move- Coil springsserve to keep thepresser foot depressed some distance below the hot presser in order toprevent contact of the stamping strip with the presser except during thepressing operation.

We will now describe the operation of the tapeor strip-feedingmechanism. The upper end of the arm'5 is extended to form a sector gearorarm 5 which intermeshes with a pinion 8 that is loosely mounted onthefeed roll shaft 9. This pinion is also provided with a projectingcircular flange or disk 10 in which is secured an axially projectingengages a cooperatpm 12 that is secured to theouter clutch couple. Ayielding spring connection between the pinion 8 and the outer clutchmember 13 is afforded by means of a spiral spring 14 one end of which isanchored to the clutch ring and the other of which is anchored to thedisk 10 of the ing 7 The outer clutch ring 13 is alsoprovidedwitlraa'adially projecting pin 15 which acts in con unction with andjustable stop pin clutch ring 13 as will be presently explained.

The interiorball clutch member 40 is provided with spring-pressed balls41 after the usual manner of'aouter clutch ring to clutch member, whileon the reverse movement ina contraclockwise direction thetwo clutchmembers are, frictionally locked together, and theball clutch head 40 iskeyed to the shaft 9 so th "movement the shaft 9 is at on thecontraclockwise clockwise direction. v 1

To prevent the return-movement of the time compressing pin 11 secured'tothe disk rotated in a contrapin 43 on the head and at its other endsebell crank lever 46 fixed pin 17. The lever 16 is provided with an inwardly projecting pin 48 which projects through a slot in the disk orhead 7 so as to extend into the path of movement of the radial pin onthe clutch ring 13 so that on the return or actuating movement of theclutch ring and pin 15, a rocking movement is transmitted to the bellcrank lever in a contraclockwise direction, according to the showing inFigiu'es 4 and 6, ma clockwise direction according to the showing inFigure 3, so that the brake band firmly against the collar 49 shaft 9 soas to instantly of the feed roll 20. V

The device is actuated through a treadle in the following manner.

The lower parallel arm 6 has an extension provided with a pin andslotengagement with a vertical plunger 61 carrying at its lower end adisk or head 62 to receive the thrust of a helical spring 63 whereby thehead is normally kept the pressure of the spring.

The plunger 61 at its lower end rests upon the working arm of a foottreadle 65 which, when depressed by the foot, raises the plunger againstthe tension of the spring 63 thereby forcing the head down toward thebed plate of the work table and at the same spring 63. hen the treadleis released the expansion of the spring 63 raises the head to normalposition.

The operation of the machine is as follows:

A roll of the stamp bearing tissue tape'is placed on the reel 4 and itsfree end drawn partly around the cross bars 35, 36 in the supportingframe of the head, and is then passed directly beneath the presserfoot37 around the guide 38, thence underneath and partly around the feedroll 20, then back and around feed roll'30, over across shaft 5 and isthen carried back and dropped over the periphery of the coiled tape onthe reel. When the head is depressed by the foot treadle 65- 'theinduced movement of the sector arm 5* rotates thepinion 8 in aclockwisedirection, according to Figure 4-. Now as the spiral spring acts-topress pin 12secured to the clutch ring normally against 10, it will beseen that as the pinion 8 rotates loosely on the shaft 9 in a-clockwisedirection the spiral spring 14, by its tension, causes pin 12 to followand keep in contact with said pin 11, but as the clutch is idling onthis clockwise cured to a pin 45 on a wlnch 1s iiilci'iiiiied on a bellcrank secured to the stop the rotation movement the' b'all clutchmember'does not 44: is tightened raised by means of through the sectorgear 5.

move. This clockwise rotation of pinion 8 and clutch ring 13 continuesuntil stop pin 15 comes into engagement with adjustable stop pin 16which arrests the rotative movement of the clutch ring while allowingthe pinion to continue its rotation thereby putting extra tension on thespiral spring 14. It will, therefore, be seen that the position of theadjustable stop member 16 determines the initial point from which thereturn movement of the clutch ring 13 begins.

hen the treadle is released the compressed spring 63 raises theheadthereby inducing a reverse rotation of the pinion 8 The pin 11,therefore, travels back until it engages pin 12 on the clutch ring andthereafter continues to push pin 12 and the clutch ring 13 in acontraclockwise direction until stop pin 15 comes into contact with anactuating pin 18 of the angle lever 46 thereby instantly tightening thebrake band and stopping the rotation of the feed roll 20.

It will, therefore, be seen that the descent of the head causes nomovement of the shaft 9 through the clutch which idles on this movementbut that on the upward movement of the head the clutch members areinterlocked or engaged and thereby a reverse rotation is imparted to theshaft 9 and to the feed roll 20, the extent of such reverse rotationbeing dependent upon the position of the stop pin 16 which governs thepoint from which the actuating movement of the clutch begins to operate.

The presser foot 37 keeps the tape away from the hot presser 7 until itcomes in contact with the work-supporting bed plate of the table whenthe presser foot yelds under the continued downward movement of thehead, thus allowing the presser 7 which is usually heated, to come incontact with the stamped bearing tape and hot press the stamp againstthe underlying fabric or article, As soon as the head begins to risefrom the table the presser foot or guide once morepushes the tape out ofcontact with the hot plate, and the stamp strip is then fed forward apredetermined distance according to the adjusted position of the stoppin 16. The slack or waste tape is fed out of the head by means of itsfrictional contact with the peripheral portion of the reeled tape, asshown at m, Figure 1, so that the hands of the operator are entirelyfree to handle the work, the feed being both automatic and adjustableand the waste taking care of itself.

It will be seen that the clutch mechanism forms an intermediateratchet-like connection between the head-supporting means and thetape-feeding roll whereby on each alternate movement, preferably theupward movement of the head, the tape is fed through the head apredetermined.- distance presser head movable to and from said head,movable supporting members for moving said head up and down,tape-feeding rolls mounted in said head and operatively connected withone of said movable supporting members to be intermittently actuatedthereby in order to feed the tape a predetermined distauce on eachalternate movement of the head, substantially as described.

2. In a stamp-transferring machine, the combination with awork-supportingbed, a presser head mounted on pivotal arms to move toand from the head, tape-feeding mechanism mounted in the head andautomatically actuated by engagement with one of said pivoted arms tofeed the tape a predetermined distance as the head is moved in order tobring fresh portions of the tape into operative relation to the work,and means for actuating said pivoted arms to raise and lower the head,substantially as described. 3. In a stamp-transferring machine, the

combination with a work supporting bed, a i

presser head, supporting members therefor movable up and down to pressthe head against the work, a tape-supporting reel.

tape feeding rolls mounted in the head and" arranged to deliver thewaste end of the tape back in contact with the uncoiling tape on thereel in order to draw it out of the machine, said tape feeding rollsbeing actuated by operative connection with one of the head supportingmembers, substantially as described.

4. In a stamp-transferring machine, the combination with awork-supporting bed, a. movable presser head, parallel pivotal arms forsupporting said head and carrying it toward and away from the head platein parallel position, tape-feeding rolls mounted in said head, and meanscontrolled by the movement of the head for operatively con necting oneof. said tape-feeding rolls with an actuating member on one of saidpivoted arms in order to present fresh portions of the tape to the bedon successive stamping operations, substantially as described.

5. In a stamp-transferring machine the combination of a work-supportingbed, and a cooperating presser head, pivotally mounted movablesupporting members acting to carry the presser to and from the bed inparallel relation, tape-feeding rolls opera tively connected with one ofsaid movable supporting members by means ofa ratchet clutch to feed thetape intermittently between the presser and the bed, substantially asdescribed.

-6.In a stamp-transferring machine, the combination with awork-supporting bed, a presser head mounted on pivotal parallel arms,one of said arms being provided with a sector gear, a pinion adapted tobe actuated alternately in opposite directions through engagement withthe sector gear as the head is moved to and fro, a tape-feeding rollmounted in said head and means for establishing a driving connectionbetween said pinion and said teed roll on each alternate stroke of thehead in order to feed the tape. a predetermined distance for eachstamping operation, substantially as described.

7. In a stamp-transferringmachine the combination of a work-supportingbed, a presser head, means for actuating said head to and from thepresser, tape-feeding rolls carried by said head arranged tocontinuously grip an interposed stamp bearing tape, said rolls beingintermittently actuated by the presser actuating means through a ratchetand clutch mechanism connected with the journal of one of said rolls tofeed the tape intermittently between the bed and the presser,substantially as described.

8. In a stamp-transferring machine, the combination with awork-supporting bed, a movable presser head, means for supporting saidpresser head tomove toward and away from the bed, feeding roll mechanismfor feeding a transfer tape through the head, intermittently actuatingmechanism embracing a' ratchet clutch operatively connected with thehead-supporting means to rotate the feed roll on y when the head ismoving in one direct-ion, an adjustable stop member for limiting therotative movement of said clutch members in order to vary the extent ofrotation of the "feed roll, and a brake mechanism actuated by saidclutch at the end of its tape-feeding movement, substantially asdescribed.

9. In a stamp-transferring machine, the combination of a work-supportingbed, a head movable to and from said bed, a heated presser secured tothe head, tapateeding rolls carried by the head, feed-actuatingmechanism embracing a rack and pinion operatively connected anddisconnected with said feed mile on alternate movements of said head bymeans of a reversely rotated clutch, said rack and pinion beingreversely actuated by the alternate movements of the presser head towardand away from said bed, substantially as described.

10. In a stamp-transferring machine, the combination of awork-supporting bed, a

pressed movable to and from said bed to hot press an interposed stamp onthe work, tapeteeding rolls mounted in the head, feed-actuating meansembracing a constantly meshing rack and pinion reversely actuated by thealternate movements of the presser head, a reversely rotated clutchforming an intermittent connection between said rack and pinion and thefeed rolls, and an adjustable stop member for limiting the rotativemovement of said clutch in order to vary the feeding action,substantially as described.

In witness whereof, we have subscribed the above specification.

TROIVBRIDGE MARSTON. HERBERT E. SERNER.

Witness FRANK N. MARsToN.

